similar to: How do I add autoincrement?

Hi I need to push newly created item id to file. (ie. its autoincrement value) I tried this on controller but it wont work, it cant find id value for the newly created item. def create @imitem = Imitem.new(params[:imitem]) system "echo \"@imitem.id\" > /tmp/myid" any help ? --~--~---------~--~----~------------~-------~--~----~ You received this message because you

There is a table: execute (<<-SQL) CREATE TABLE "tasks" ( "id" serial primary key, "number" serial, "version" integer DEFAULT 0 NOT NULL, "latest_version" boolean DEFAULT ''t'' NOT NULL, "hidden" boolean DEFAULT ''f'' NOT NULL, "type" character varying (1) NOT

I put this config in environment.rb # Use table_id instead of id for primary key. config.active_record.primary_key_prefix_type = :table_name_with_underscore I have this migration: class CreateEntities < ActiveRecord::Migration def self.up create_table :entities do |t| t.string :entity_name, :null => false, :limit => 40 t.string

The build failed. CHANGES ------- Revision 8896 committed by bitsweat on 2008-02-19 02:56:05 Don''t assume all records from nested include are of same class. Closes #11154 [acechase] M /trunk/activerecord/lib/active_record/association_preload.rb A /trunk/activerecord/test/cases/associations/eager_load_nested_include_test.rb TEST FAILURES AND ERRORS ----------------------- Name:

Im trying to do the message board tutorial here but I have rain into a problem I get this error message SQLite3::SQLException: table posts already exists: CREATE TABLE posts ("id" INTE GER PRIMARY KEY AUTOINCREMENT NOT NULL, "body" text DEFAULT NULL, "created_at" d atetime NOT NULL, "name" varchar(100) DEFAULT NULL, "discussion_id" integer NOT

I have two tables like: Table A: id (autoincrement) name Table B id id_of_A desc I want to add a record to table A and based on the id of A, I want to add a record to table B. I don''t think there is any SQL command that support this (at least in MySQL 4.1, so I use LAST_INSERT_ID()). (Is there any other way? or MySQL 5 support any special SQL command?) But I need

I use this naming convention for primary keys: ActiveRecord::Base.primary_key_prefix_type = :table_name_with_underscore I generate the MySQL test database: rake db:test:prepare, and although the column is there there is no primary key enforcement/index and no autoincrement (so activerecord saves fail). Is this a bug? What is the best workaround? Alan

>>>>> Ted Harding >>>>> on Thu, 31 May 2018 07:10:32 +0100 writes: > Well pointed out, Jim! > It is infortunate that the documentation for options(digits=...) > does not mention that these are *significant digits* > and not *decimal places* (which is what Joshua seems to want): Since R 3.4.0 the help on ?options *does* say

Hi Joshua, Because there are no values in column ddd less than 1. itemInfo[3,"ddd"]<-0.3645372 itemInfo aaa bbb ccc ddd eee skill 1.396 6.225 0.517 5.775 2.497 predict 1.326 5.230 0.462 5.116 -2.673 waiting 1.117 4.948 NA 0.365 NA complex 1.237 4.170 0.220 4.713 5.642 novelty 1.054 4.005 0.442 4.260 2.076 creative 1.031 3.561 0.362 3.689

Well pointed out, Jim! It is infortunate that the documentation for options(digits=...) does not mention that these are *significant digits* and not *decimal places* (which is what Joshua seems to want): "?digits?: controls the number of digits to print when printing numeric values." On the face of it, printing the value "0,517" of 'ccc' looks like printing 4

Hey everyone, I''m working on an application that has a table with a nice natural primary key. Outside of the rails world it would be *the* primary key. I would prefer to use this natural primary key and define associations that use it. I''ve done so but the problem is that my form for entering a record in this table is currently failing. I''ve used

I am creating an app that will out grow an int(10) unsigned for the id field, ie. 4,294,967,295 records. What are my options, I have looked at the GUID plugin that lets you use a 32 char GUID, but I still want the id''s to be sequential, and (I think) that the overhead of searching a varchar field will be too big for such a large number of records. It does not appear you can use a

Hi. I''m having a problem with my testing. The following table in my development database (MySQL 4.1.12, InnoDB): +-----------------------+------------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +-----------------------+------------------------+------+-----+---------+----------------+ |

I am getting the following error using sqlite3. If I ran the same query directly in sqlite3 client, the data is saved without error. Same is happening for every table during inserts. SQLite3::SQLException: sessions.id may not be NULL: INSERT INTO sessions ("updated_at", "session_id", "data") VALUES(''2009-09-30 02:28:45'',

Ok, I have an table column that needs to auto-increment, but isn''t the primary key (although I guess it could be). The format for the column is "SR001234" and it needs to autoincrement like so: SR001234 SR001235 SR001236 ... SR999999 How can I do this? I know Ruby has some pretty nice constructs for doing things like this, but I just don''t quite see how to put them

Hello, When I run the command: "ruby script/generate scaffold Product Admin" I receive the following error after the usual changed files info: "Couldn''t find ''product'' generator" The command is based on "Agile Web Application Development with Rails" first edition on page: 57. Just to give some context to what I am doing, I just created

R version 3.5.0 (2018-04-23) -- "Joy in Playing" Platform: x86_64-pc-linux-gnu (64-bit) options(digits=3) itemInfo <- structure(list("aaa" = c(1.39633732316667, 1.32598263816667, 1.11658324066667, 1.23651072616667, 1.05368679983333, 1.03100737383333, 0.9630728395, 0.7483865045, 0.620086646166667, 0.5411017985, 0.496397607833333, 0.459528044666667, 0.427877047833333,

Apologies if this has been discussed before, but with the search function down its hard to find out if it has The first Agile book recommended using the automatically assigned row id of an object as a foreign key reference, as rails would automatically interpret the attribute (for example) product_id as the table ''product'' and row ''id''. I''ve just

Hi, the display of LSS16 files from a DISPLAY file (as documented in http://www.syslinux.org/wiki/index.php/SYSLINUX#Display_graphic_from_filename:) seems heavily broken since syslinux has been converted from assembler to C. I already discovered one bug in core/include/graphics.h (and core/graphics.c): the pointer VGAFilePtr is of type uint16_t*, but should be plain char*. This bug causes the

I am attempting to redirect to the show method after creating a new object. So, for example, once a new post is created the user is presented with the new post in a show view. The problem is I can''t get the correct <at> post.id to send to the show method. Rails always returns 0 for this value. Here''s what I have so far: class ContentController < ApplicationController